﻿/* ==============================================================================
*
*   Copyright (c) 2010, Pierre Favier
*   All rights reserved.
*
*   NTasking is free software: you can redistribute it and/or modify it
*   under the terms of the GNU General Public License as published by the
*   Free Software Foundation.
*
*   Redistribution and use in source and binary forms, with or without
*   modification, are permitted provided that the following conditions
*   are met:
*
*   -   Redistributions of source code must retain the above copyright notice,
*       this list of conditions and the following disclaimer.
*
*   -   Redistributions in binary form must reproduce the above
*       copyright notice, this list of conditions and the following
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*       provided with the distribution.
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*   THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* ============================================================================== */

using System;
using NTasking;
using NTaskingQuickStart.Logging;
using NTaskingQuickStart.Printing;
using NTaskingQuickStart.Offices;

namespace NTaskingQuickStart
{
    
    static class Program
    {
    
        private static void Main()
        {
            Printer printer = null;
            Office office = null;
            SubContractor[] subContractors = new SubContractor[4];
            
            "MAIN".Declare(() =>
            {
                // Create the printer
                printer = new Printer();
                
                // Create an office with some employees
                office = new Office(printer);
                office.HireEmployee("CEO");
                office.HireEmployee("Accountant");
                office.HireEmployee("Engineer");
                office.HireEmployee("Assistant");
                
                // Create some sub-contractors
                for (int i = 0; i < subContractors.Length; i++)
                    subContractors[i] = new SubContractor(i);
            },
            // All passive worker, active worker and PrintHandler tasks
            // are activated at this point
            Begin: () =>
            {
                // Employees will start printing some reports here
                
                // Sign some contracts with the sub-contractors.
                for (int i = 0; i < subContractors.Length; i++)
                    subContractors[i].SignContract("SubContract" + i, office);
                
                // Shutdown the printer.
                // After that, new print requests will be ignored.
                printer.Shutdown();
                
                // Employees are continuing to work but they are not
                // printing any more reports
                
                // One sub-contractor goes on holiday
                subContractors[0].GoOnHoliday();
                
                // Sign some more contracts with the sub-contractors.
                // They are not printing any more reports
                for (int i = 0; i < subContractors.Length; i++)
                    subContractors[i].SignContract("SubContract" + (i + 10), office);
                
                // Instruct the employees to terminate their day's work
                Logger.WriteLine("It is time to close the office");
                office.CloseOffice();
                
                // All sub-contractors will terminate at this point
                // because they can't be given any new contracts
             });
             
             // The program will get here only after all employees,
             // all sub-contractors and the PrinterHandler tasks have terminated.
             Logger.WriteLine("All tasks are terminated");
        }
        
    }
    
}
